In Psalm 99:1 "The LORD reigneth; let the people tremble; he sitteth between the cherubims; let the earth be moved." An OT allusion to the Lord as seated or enthroned between the cherubim, which is a metaphor of his sovereignty.
Likewise in Psalm 18:10 "And he rode upon the cherub, and he did fly: yea, he did fly upon the wings of the wind," showing that all creation is subject to his sovereignty and the powers at his disposal.
To sum up: the cherubim are the living chariots or carriers of God when appearing to men, in winged human form with the faces of lion, ox, man and eagle. They never come close to men.
To see a connection with the word Lights in Genesis 1:14-19 with the following:
Candlestick - Heb. menowrah, men-o-raw', or menorah, feminine of Heb. manowr, maw-nore', a yoke (in the original sense of Heb. niyr, neer, or nir, also neyr, nare, or ner, or the feminine nerah, nay-raw, from a primary root [Heb. niyr or Chaldean nuwr, noor, shine, fire]) properly meaning to glisten, a lamp (i.e. the burner) or light (lit. or fig.): candle, lamp, light; a chandelier, candlestick.
The history of the Menorah begins in the book of Exodus where he was instructed to build a golden lampstand upon which seven lamps were positioned and outlined in Exodus 25:31-40. In these verses are references to a candlestick, 6 branches, bowls, knobs and flowers (leaves, and fruits--almonds), and a talent of pure gold. These descriptions continue on into Exodus chapter 37 regarding rituals.
The almond tree figured prominently in the design of the Menorah. The Hebrew word for almond (Heb. shaqad, shaw-kad', a denomitive from Heb. shaqed, shaw-kade', the almond (tree or nut), from Heb. shaqad, to be alert, thus meaning to be almond-shaped. Some sources claim that the Hebrew word for almond, resulting in (luz) has become a root for "light" in other languages.
The first-century Jewish historian, Flavius Josephus, also described the Menorah built for Moses by Bezaleel: Antiquities of the Jews, Book III, Chapter VI, Paragraph 7.